Answered 0 0 If my evaporator in my refrigerator is covered in ice and the defrost thermostat is closed, would it be alright to plug the unit back in and allow it to defrost on it’s own? Refrigerator LG Share Facebook Twitter Google+ Tumblr LinkedIn Mail Harold Corman asked 7 years ago Answers (1) Filter Sort by: Newest First Oldest FirstMost VotesRecently Active Post Answer Keyword Match all Match any Best Answer 0 0 I suggest you shut the unit down 24 hours and let it defrost. You will need to determine what part is causing the unit to ice up. It could be your defrost timer, heater or thermostat . Matt, Ace Appliance answered 7 years ago You must login to reply Showing 1 result Your Answer Please login first to submit.